function winPopup(URL, wdt, hgt) {
	winP = "'toolbar=0,location=0,directories=0,status=0,scrollbars=0,resizable=0,copyhistory=0,menuBar=0'";
	popup = window.open(URL,'',winP);
	winW = (screen.width - wdt) / 2;
	winH = (screen.Height - hgt) / 2;
	popup.moveTo(winW, winH);
	popup.resizeTo(wdt, hgt);
}